To link to the entire object, paste this link in email, IM or documentTo embed the entire object, paste this HTML in websiteTo link to this page, paste this link in email, IM or documentTo embed this page, paste this HTML in website

1
Oklahoma Environmental Training Center
The Main Event
Vol. I, Issue 1 November 2011
Safety for water,
wastewater system
operators
By Bill Clark
Within the last year two con-struction
workers were killed in an
excavation cave-in. All preliminary
reports indicate they were working
in an excavation about 20 feet deep
without any cave-in protection.
Cave-ins can happen in seconds
without warning. There is usually
never any time to escape. Soil is
an extremely heavy material. A
cubic yard of soil (3 feet x 3 feet
x 3 feet), which contains 27 cubic
feet of material, may weigh more
than 2,700 pounds. That is nearly
one and a half tons (the equivalent
weight of a car) in a space less than
the size of the average office desk.
Furthermore, wet soil, rocky
soil or rock is usually heavier. The
human body cannot support such
heavy loads without being severely
injured. Let’s review OSHA regu-lations
that cover Trenching and
Excavation, 29 CFR, 1926.650,
651 and 652.
These rules are there to save your
life. Think about your family the
next time you’re thinking about
jumping into a trench without
cave-in protection even for a few
minutes.
2011 Calendar
November
Nov. 1-4: C Water Lab
Nov. 15-16: D Water
Nov. 17-18: D Wastewater
Nov. 29-Dec. 2: A/B Waste-water
Lab
December
Dec. 6-7: C Water Operator
Dec. 8-9: C Wastewater
Operator
Dec. 12: Disinfectant Byproduct
Dec. 13-14: D Water Operator
Dec. 15-16: D Wastewater
Operator
2012 Calendar
January
Jan. 3: Advanced Water
Operator Math
Jan. 9-12: A/B Water Operator
Jan. 23-24: D Water Operator
Jan. 23-26: A/B Water Lab
Jan. 25-26: D Wastewater
Operator
Jan. 31: Advanced Waste-water
Operator Math
Trenching and Excavation
Requirements
1. OSHA requirements state
that if the trench is 5 feet or
more in depth some type of
cave-in protection is absolute-ly
required.
2. A person designated as
qualified and competent to
recognize and evaluate haz-ards
must be present.
3. If the excavation is 20 feet
or more in depth a profes-sional
engineer is required to
evaluate the soil and determine
cave-in protection before any-one
enters the excavation, 29
CFR 1926.652 (b)(c).
OSHA Trenching and Excavation Requirements
OETC
2011-2012
Calendar
See OETC on Page 3
www.rscoetc.wordpress.com

1
Oklahoma Environmental Training Center
The Main Event
Vol. I, Issue 1 November 2011
Safety for water,
wastewater system
operators
By Bill Clark
Within the last year two con-struction
workers were killed in an
excavation cave-in. All preliminary
reports indicate they were working
in an excavation about 20 feet deep
without any cave-in protection.
Cave-ins can happen in seconds
without warning. There is usually
never any time to escape. Soil is
an extremely heavy material. A
cubic yard of soil (3 feet x 3 feet
x 3 feet), which contains 27 cubic
feet of material, may weigh more
than 2,700 pounds. That is nearly
one and a half tons (the equivalent
weight of a car) in a space less than
the size of the average office desk.
Furthermore, wet soil, rocky
soil or rock is usually heavier. The
human body cannot support such
heavy loads without being severely
injured. Let’s review OSHA regu-lations
that cover Trenching and
Excavation, 29 CFR, 1926.650,
651 and 652.
These rules are there to save your
life. Think about your family the
next time you’re thinking about
jumping into a trench without
cave-in protection even for a few
minutes.
2011 Calendar
November
Nov. 1-4: C Water Lab
Nov. 15-16: D Water
Nov. 17-18: D Wastewater
Nov. 29-Dec. 2: A/B Waste-water
Lab
December
Dec. 6-7: C Water Operator
Dec. 8-9: C Wastewater
Operator
Dec. 12: Disinfectant Byproduct
Dec. 13-14: D Water Operator
Dec. 15-16: D Wastewater
Operator
2012 Calendar
January
Jan. 3: Advanced Water
Operator Math
Jan. 9-12: A/B Water Operator
Jan. 23-24: D Water Operator
Jan. 23-26: A/B Water Lab
Jan. 25-26: D Wastewater
Operator
Jan. 31: Advanced Waste-water
Operator Math
Trenching and Excavation
Requirements
1. OSHA requirements state
that if the trench is 5 feet or
more in depth some type of
cave-in protection is absolute-ly
required.
2. A person designated as
qualified and competent to
recognize and evaluate haz-ards
must be present.
3. If the excavation is 20 feet
or more in depth a profes-sional
engineer is required to
evaluate the soil and determine
cave-in protection before any-one
enters the excavation, 29
CFR 1926.652 (b)(c).
OSHA Trenching and Excavation Requirements
OETC
2011-2012
Calendar
See OETC on Page 3
www.rscoetc.wordpress.com